What Causes a Sudden Doubling of Fuel Consumption?
1 Answers
The reasons for a sudden increase in fuel consumption include severe engine carbon deposits, the use of low-quality fuel, excessive vehicle load, and the use of high-power electrical equipment in the vehicle. The specific related introductions are as follows: Severe Engine Carbon Deposits: Carbon deposits usually form on the fuel injector, spark plug, throttle valve, and combustion chamber. When carbon deposits reach a certain level, issues such as difficulty in ignition, stalling during neutral coasting or gear shifting, lack of acceleration power, and unstable idle speed (fluctuating high and low) may occur. Use of Low-Quality Fuel: Since low-quality fuel contains more impurities and cannot be fully combusted, most of the gasoline is expelled from the vehicle. At the same time, a layer of white or reddish-brown substance forms on the surface of the oxygen sensor, leading to misjudgment of exhaust oxygen content measurement, transmission of incorrect data, and ultimately poor control of the fuel injection ratio. Excessive Vehicle Load: There are many unnecessary items in the vehicle. Some car owners prefer to place unnecessary items in the vehicle, which increases the weight. Some car owners also like to fill up the fuel tank, which also increases the vehicle's weight. The greater the vehicle load, the greater the pressure of the tires on the ground, and the greater the tire friction. Use of High-Power Electrical Equipment in the Vehicle: Especially during idling, due to the low engine speed, the electricity generated by the alternator is insufficient. When high-power electrical equipment (such as air conditioning cooling, high-power audio) is used in the vehicle, it increases the burden on the engine and battery. Operating the vehicle under high load conditions will also lead to increased fuel consumption.
